Punch-Marked Karshapana

Punch-marked Karshapanas weren't minted in the modern sense; instead, artisans hammered symbols directly into silver blanks, turning each coin into a bespoke artifact of ancient trade.

These coins, dating roughly from 600 to 300 BCE, featured an array of punches—everything from stylized animals to abstract motifs—that varied by region and issuer. Silver came from local sources, often alloyed with copper for durability, though exact compositions remain debated. No two coins are identical, which complicates authentication even today.

We don't know the precise economic role they played, as written records from that era are scarce. Myths about their symbolism, like claims of divine endorsements, have proliferated, but they're mostly guesswork.

Some collectors swear these marks predict the weather. They don't.